样式属性（Style properties）¶

大小与位置（Size and position）¶

Properties related to size, position, alignment and layout of the objects. 与对象的大小、位置、对齐方式和布局相关的属性。

宽度（width）¶

可以使用像素、百分比和LV_SIZE_CONTENT来设置对象的宽度。百分比值与父对象的内容区域的宽度相关。

默认值（Default） 与部件相关（Widget dependent）
Inherited No
Layout Yes
Ext. draw No

最小宽度（min_width）¶

设置最小宽度。可以使用像素值和百分比值。百分比值与父对象的内容区域的宽度相关。

Default 0
Inherited No
Layout Yes
Ext. draw No

最大宽度（max_width）¶

设置最大宽度。可以使用像素值和百分比值。百分比值与父对象的内容区域的宽度相关。

Default LV_COORD_MAX
Inherited No
Layout Yes
Ext. draw No

高度（height）¶

可以使用像素、百分比和LV_SIZE_CONTENT来设置对象的高度。百分比值与父对象的内容区域的宽度相关。

Default Widget dependent
Inherited No
Layout Yes
Ext. draw No

最小高度（min_height）¶

设置最小高度。可以使用像素值和百分比值。百分比值与父对象的内容区域的宽度相关。

Default 0
Inherited No
Layout Yes
Ext. draw No

最大高度（max_height）¶

设置最大高度。可以使用像素值和百分比值。百分比值与父对象的内容区域的宽度相关。

Default LV_COORD_MAX
Inherited No
Layout Yes
Ext. draw No

x¶

设置对象的x坐标，并需要考虑对齐 align 的方式. 可以使用像素值和百分比值。百分比值与父对象的内容区域的宽度相关。

Default 0
Inherited No
Layout Yes
Ext. draw No

y¶

设置对象的y坐标，并需要考虑对齐 align 的方式. 可以使用像素值和百分比值。百分比值与父对象的内容区域的宽度相关。

Default 0
Inherited No
Layout Yes
Ext. draw No

对齐方式（align）¶

设置对齐方式，该对齐方式告诉应从父节点的哪个位置来作为 X 和 Y 坐标的原点。共有以下几种选项: LV_ALIGN_DEFAULT, LV_ALIGN_TOP_LEFT/MID/RIGHT, LV_ALIGN_BOTTOM_LEFT/MID/RIGHT, LV_ALIGN_LEFT/RIGHT_MID, LV_ALIGN_CENTER。

LV_ALIGN_DEFAULT 代表 LV_ALIGN_TOP_LEFT ，即以左上角作为原点，LV_ALIGN_TOP_RIGHT 则是右上角作为原点。

Default `LV_ALIGN_DEFAULT`
Inherited No
Layout Yes
Ext. draw No

变换宽度（transform_width）¶

此值会使对象变得更宽。可以使用像素和百分比（lv_pct(x)）值。百分比值相对于对象的宽度而言。

Default 0
Inherited No
Layout No
Ext. draw Yes

变换高度（transform_height）¶

此值会使对象在两侧变得更高。可以使用像素和百分比（lv_pct(x)）值。百分比值相对于对象的高度而言。

Default 0
Inherited No
Layout No
Ext. draw Yes

变换x坐标（translate_x）¶

沿x方向移动对象，在完成布局、对齐和其他定位之后使用。可以使用像素和百分比（使用 lv_pct(x)）值。百分比值相对于对象的宽度而言。

Default 0
Inherited No
Layout Yes
Ext. draw No

变换y坐标（translate_y）¶

沿y方向移动对象，在完成布局、对齐和其他定位之后使用。可以使用像素和百分比（使用 lv_pct(x)）值。百分比值相对于对象的高度而言。

Default 0
Inherited No
Layout Yes
Ext. draw No

缩放（transform_zoom）¶

与图片缩放类似，与对象的属性进行相乘。256(或者 LV_IMG_ZOOM_NONE)是普通尺寸，128则缩放到原来的一半，512则是放大一倍，以此类推。

Default 0
Inherited No
Layout Yes
Ext. draw Yes

变换角度（transform_angle）¶

与旋转图片类似类似地旋转对象，1代表0.1度，则 45 度 = 450

Default 0
Inherited No
Layout Yes
Ext. draw Yes

填充（Padding）¶

用于描述父级与子级之间以及子级之间间距的属性。非常类似于 HTML 中的填充属性。

顶部填充（pad_top）¶

在顶部设置填充。它使这个方向的内容区域变得更小。

Default 0
Inherited No
Layout Yes
Ext. draw No

底部填充（pad_bottom）¶

在底部设置填充。它使这个方向的内容区域变得更小。

Default 0
Inherited No
Layout Yes
Ext. draw No

左部填充（pad_left）¶

在左部设置填充。它使这个方向的内容区域变得更小。

Default 0
Inherited No
Layout Yes
Ext. draw No

右部填充（pad_right）¶

在右部设置填充。它使这个方向的内容区域变得更小。

Default 0
Inherited No
Layout Yes
Ext. draw No

行填充（pad_row）¶

设置行之间的填充。在布局时使用。

Default 0
Inherited No
Layout Yes
Ext. draw No

列填充（pad_column）¶

设置列之间的填充。在布局时使用

Default 0
Inherited No
Layout Yes
Ext. draw No

背景（Background）¶

用于描述对象的背景颜色和图像的属性。

背景颜色（bg_color）¶

Set the background color of the object.

Default `0xffffff`
Inherited No
Layout No
Ext. draw No

bg_opa¶

设置背景的不透明度。0 , LV_OPA_0 或 LV_OPA_TRANSP 意味着完全透明, 256 , LV_OPA_100 或 LV_OPA_COVER 意味着不透明, 其他值或 LV_OPA_10、LV_OPA_20 等表示半透明。

Default `LV_OPA_TRANSP`
Inherited No
Layout No
Ext. draw No

渐变色（bg_grad_color）¶

设置背景的渐变色. 只有在 grad_dir 不是 LV_GRAD_DIR_NONE 时生效。

Default `0x000000`
Inherited No
Layout No
Ext. draw No

渐变方向（bg_grad_dir）¶

设置背景渐变的方向. 有三个值 LV_GRAD_DIR_NONE/HOR/VER.

Default `LV_GRAD_DIR_NONE`
Inherited No
Layout No
Ext. draw No

背景色起点（bg_main_stop）¶

设置背景色的起点。 0 表示顶部/左侧，255 表示底部/右侧，128 表示中心，依此类推

Default 0
Inherited No
Layout No
Ext. draw No

背景渐变色起点（bg_grad_stop）¶

设置背景渐变颜色的起点。 0 表示顶部/左侧，255 表示底部/右侧，128 表示中心，依此类推

Default 255
Inherited No
Layout No
Ext. draw No

背景图片（bg_img_src）¶

设置背景图像。可以是指向 lv_img_dsc_t 的指针、文件路径或LV_SYMBOL_...

Default `NULL`
Inherited No
Layout No
Ext. draw Yes

背景图片透明度（bg_img_opa）¶

设置背景图片的不透明度。0 , LV_OPA_0 或 LV_OPA_TRANSP 意味着完全透明, 256 , LV_OPA_100 或 LV_OPA_COVER 意味着不透明, 其他值或 LV_OPA_10、LV_OPA_20 等表示半透明。

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw No

背景图片重新着色（bg_img_recolor）¶

设置一种颜色以混合到背景图像。

Default `0x000000`
Inherited No
Layout No
Ext. draw No

背景图片重新着色强度（bg_img_recolor_opa）¶

设置背景图像重新着色的强度。值 0、LV_OPA_0 或 LV_OPA_TRANSP 表示不混合，256、LV_OPA_100 或 LV_OPA_COVER 表示完全重新着色，其他值或 LV_OPA_10、LV_OPA_20 等按比例解释。

Default `LV_OPA_TRANSP`
Inherited No
Layout No
Ext. draw No

背景图片平铺（bg_img_tiled）¶

如果启用，背景图像将被平铺。可能的值为“true”或“false”。

Default 0
Inherited No
Layout No
Ext. draw No

边框（Border）¶

描述边狂的属性

边框颜色（border_color）¶

Set the color of the border

Default `0x000000`
Inherited No
Layout No
Ext. draw No

边框不透明度（border_opa）¶

设置边框的不透明度。 0 , LV_OPA_0 或 LV_OPA_TRANSP 意味着完全透明, 256 , LV_OPA_100 或 LV_OPA_COVER 意味着不透明, 其他值或 LV_OPA_10、LV_OPA_20 等表示半透明。

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw No

边框宽度（border_width）¶

设置边框的宽度。只能使用像素值。

Default 0
Inherited No
Layout Yes
Ext. draw No

边界尺寸（border_side）¶

Set ony which side(s) the border should be drawn. The possible values are LV_BORDER_SIDE_NONE/TOP/BOTTOM/LEFT/RIGHT/INTERNAL. OR-ed calues an be used as well, e.g. LV_BORDER_SIDE_TOP | LV_BORDER_SIDE_LEFT.

Default `LV_BORDER_SIDE_NONE`
Inherited No
Layout No
Ext. draw No

border_post¶

Sets whether the the border should be drawn before or after the children ar drawn. true: after children, false: before children

Default 0
Inherited No
Layout No
Ext. draw No

轮廓（Outline）¶

描述轮廓的属性。它像边框，但绘制在矩形之外。

轮廓宽度（outline_width）¶

Set the width of the outline in pixels.

Default 0
Inherited No
Layout No
Ext. draw Yes

outline_color¶

Set the color of the outline.

Default `0x000000`
Inherited No
Layout No
Ext. draw No

outline_opa¶

Set the opacity of the outline. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 256, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency.

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw Yes

outline_pad¶

Set the padding of the outline, i.e. the gap between object and the outline.

Default 0
Inherited No
Layout No
Ext. draw Yes

Shadow¶

Properties to describe the shadow drawn under the rectangles.

shadow_width¶

Set the width of the shadow in pixels. The value should be >= 0.

Default 0
Inherited No
Layout No
Ext. draw Yes

shadow_ofs_x¶

Set an offset on the shadow in pixels in X direction.

Default 0
Inherited No
Layout No
Ext. draw Yes

shadow_ofs_y¶

Set an offset on the shadow in pixels in Y direction.

Default 0
Inherited No
Layout No
Ext. draw Yes

shadow_spread¶

Make the shadow calcuation to use a larger or smaller rectangle as base. The value can be in pixel to make the area larger/smaller

Default 0
Inherited No
Layout No
Ext. draw Yes

shadow_color¶

Set the color of the shadow

Default `0x000000`
Inherited No
Layout No
Ext. draw No

shadow_opa¶

Set the opacity of the shadow. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 256, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency.

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw Yes

Image¶

Properties to describe the images

img_opa¶

Set the opacity of an image. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 256, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency.

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw No

img_recolor¶

Set color to mixt to the image.

Default `0x000000`
Inherited No
Layout No
Ext. draw No

img_recolor_opa¶

Set the intensity of the color mixing. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 256, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency.

Default 0
Inherited No
Layout No
Ext. draw No

Line¶

Properties to describe line-like objects

line_width¶

Set the width of the lines in pixel.

Default 0
Inherited No
Layout No
Ext. draw Yes

line_dash_width¶

Set the width of dashes in pixel. Note that dash works only on horizontal and vertical lines

Default 0
Inherited No
Layout No
Ext. draw No

line_dash_gap¶

Set the gap between dashes in pixel. Note that dash works only on horizontal and vertical lines

Default 0
Inherited No
Layout No
Ext. draw No

line_rounded¶

Make the end points of the lines rounded. true: rounded, false: perpendicular line ending

Default 0
Inherited No
Layout No
Ext. draw No

line_color¶

Set the color fo the lines.

Default `0x000000`
Inherited No
Layout No
Ext. draw No

line_opa¶

Set the opacity of the lines.

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw No

Arc¶

TODO

arc_width¶

Set the width (ticjkness) of the arcs in pixel.

Default 0
Inherited No
Layout No
Ext. draw Yes

arc_rounded¶

Make the end points of the arcs rounded. true: rounded, false: perpendicular line ending

Default 0
Inherited No
Layout No
Ext. draw No

arc_color¶

Set the color of the arc.

Default `0x000000`
Inherited No
Layout No
Ext. draw No

arc_opa¶

Set the opacity of the arcs.

Default `LV_OPA_COVER`
Inherited No
Layout No
Ext. draw No

arc_img_src¶

Set an image from which the arc will be masked out. It’s useful to display complex effects on the arcs. Can be a pointer to lv_img_dsc_t or a path to a file

Default `NULL`
Inherited No
Layout No
Ext. draw No

Text¶

Properties to describe the propeties of text. All these properties are inherited.

text_color¶

Sets the color of the text.

Default `0x000000`
Inherited Yes
Layout No
Ext. draw No

text_opa¶

Set the opacity of the text. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 256, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency.

Default `LV_OPA_COVER`
Inherited Yes
Layout No
Ext. draw No

text_font¶

Set the font of the text (a pointer lv_font_t *).

Default `LV_FONT_DEFAULT`
Inherited Yes
Layout Yes
Ext. draw No

text_letter_space¶

Set the letter space in pixels

Default 0
Inherited Yes
Layout Yes
Ext. draw No

text_line_space¶

Set the line space in pixels.

Default 0
Inherited Yes
Layout Yes
Ext. draw No

text_decor¶

Set decoration for the text. The possible values are LV_TEXT_DECOR_NONE/UNDERLINE/STRIKETHROUGH. OR-ed values can be used as well.

Default `LV_TEXT_DECOR_NONE`
Inherited Yes
Layout No
Ext. draw No

text_align¶

Set how to align the lines of the text. Note that it doesn’t align the object itself, only the lines inside the object. The possible values are LV_TEXT_ALIGN_LEFT/CENTER/RIGHT/AUTO. LV_TEXT_ALIGN_AUTO detect the text base direction and uses left or right alignment accordingly

Default `LV_TEXT_ALIGN_AUTO`
Inherited Yes
Layout Yes
Ext. draw No

Miscellaneous¶

Mixed proprites for various purposes.

radius¶

Set the radius on every corner. The value is interpreted in pixel (>= 0) or LV_RADIUS_CIRCLE for max. radius

Default 0
Inherited No
Layout No
Ext. draw No

clip_corner¶

Enable to clip the overflowed content on the rounded corner. Can be true or false.

Default 0
Inherited No
Layout No
Ext. draw No

opa¶

Scale down all opacity values of the object by this factor. Value 0, LV_OPA_0 or LV_OPA_TRANSP means fully transparent, 256, LV_OPA_100 or LV_OPA_COVER means fully covering, other values or LV_OPA_10, LV_OPA_20, etc means semi transparency.

Default `LV_OPA_COVER`
Inherited Yes
Layout No
Ext. draw No

color_filter_dsc¶

Mix a color to all colors of the object.

Default `NULL`
Inherited No
Layout No
Ext. draw No

color_filter_opa¶

The intensity of mixing of color filter.

Default `LV_OPA_TRANSP`
Inherited No
Layout No
Ext. draw No

anim_time¶

The animation time in milliseconds. It’s meaning is widget specific. E.g. blink time of the cursor on the text area or scroll time of a roller. See the widgets’ documentation to learn more.

Default 0
Inherited No
Layout No
Ext. draw No

anim_speed¶

The animation speed in pixel/sec. It’s meaning is widget specific. E.g. scroll speed of label. See the widgets’ documentation to learn more.

Default 0
Inherited No
Layout No
Ext. draw No

transition¶

An initialized lv_style_transition_dsc_t to describe a transition.

Default `NULL`
Inherited No
Layout No
Ext. draw No

blend_mode¶

Describes how to blend the colors to the background. The possibel values are LV_BLEND_MODE_NORMAL/ADDITIVE/SUBTRACTIVE/MULTIPLY

Default `LV_BLEND_MODE_NORMAL`
Inherited No
Layout No
Ext. draw No

layout¶

Set the layout if the object. The children will be repositioned and resized according to the policies set for the layout. For the possible values see the documentation of the layouts.

Default 0
Inherited No
Layout Yes
Ext. draw No

base_dir¶

Set the base direction of the obejct. The possible values are LV_BIDI_DIR_LTR/RTL/AUTO.

Default `LV_BASE_DIR_AUTO`
Inherited Yes
Layout Yes
Ext. draw No